New Level 623-M vs New Level 623-MB
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | 623-M loft | 623-MB loft | 623-M lie | 623-MB lie | 623-M length | 623-MB length |
|---|---|---|---|---|---|---|
| 4 | 23 | 24 | 60.5 | 60.5 | 38.5 | 38.5 |
| 5 | 26 | 27 | 61 | 61 | 38 | 38 |
| 6 | 29 | 30 | 61.5 | 61.5 | 37.5 | 37.5 |
| 7 | 33 | 34 | 62 | 62 | 37 | 37 |
| 8 | 37 | 38 | 62.5 | 62.5 | 36.5 | 36.5 |
| 9 | 41 | 42 | 63 | 63 | 36 | 36 |
| PW | 45 | 46 | 63.5 | 63.5 | 35.75 | 35.75 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- 623-M
- 623-MB
What the differences mean
At the 7-iron, the 623-M is 33° and the 623-MB is 34°, a 1° gap. Each degree of loft is worth roughly 3 to 4 yards of carry at the same swing speed, so the 623-M should carry roughly 3 to 4 yards further with that club, on a slightly lower, shallower flight than the 623-MB. Across the 7 clubs both sets share, the 623-MB averages 1° weaker, with the largest gap at the 4-iron (23° vs 24°). The pitching wedges are 45° and 46°; the stronger one leaves a 5° jump to a 50° gap wedge, which matters when planning wedge gapping.
The 623-M is a players iron and the 623-MB a blade iron, so they sit one step apart on the forgiveness scale. The 623-M is the more forgiving design, with a wider sole, more offset and more perimeter weighting for roughly scratch to 10 handicaps. The 623-MB trades some of that for a more compact head, thinner topline and more control over flight and shape, which suits low single-digit handicaps who strike the ball consistently.
The 623-M is listed as forged muscle back with a milled tuning slot and the 623-MB as forged muscle back. With the build method this similar, differences in feel come down to head size, sole width, topline and offset rather than how the heads are made.
The 623-MB came out 3 years after the 623-M, but it is a different line rather than a direct replacement, so the two were designed for different golfers as well as different seasons.
Which should you choose?
The 623-MB is the weaker-lofted set — up to 1° weaker than the 623-M. That trades raw distance for a steeper landing angle and more predictable stopping power into greens.
Both charts are reproduced in full on their own pages: New Level 623-M specs and New Level 623-MB specs.
Frequently asked questions
Is the New Level 623-M stronger lofted than the 623-MB?
Yes. The New Level 623-M 7-iron is 33° against 34° for the 623-MB, 1° stronger, which is worth roughly 3 to 4 yards of extra carry with the same swing.
What is the loft difference between the New Level 623-M and 623-MB?
At the 7-iron the difference is 1° (33° vs 34°). The largest gap on a shared club is 1° at the 4-iron, and all 7 shared clubs differ.
Which is better for higher handicap golfers, the New Level 623-M or the 623-MB?
The New Level 623-M. As a players iron it is the more forgiving design, suited to roughly scratch to 10 handicaps. The 623-MB is a blade iron, better suited to low single-digit handicaps who strike the ball consistently.
Do the New Level 623-M and 623-MB have the same lie and length?
At the 7-iron, yes: both are 62° lie and 37 inches long.
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